Citazione APA

Christensen, H. M., & Calvert, W. E. (1944). Catgut sterilization: The basic principles of the spore-germinating method. Nyt nordisk forlag A. Busck.

Stile di citazione Chicago

Christensen, Henry Marinus, e W. E. Calvert. Catgut Sterilization: The Basic Principles of the Spore-germinating Method. Copenhagen: Nyt nordisk forlag A. Busck, 1944.

Citazione MLA

Christensen, Henry Marinus, e W. E. Calvert. Catgut Sterilization: The Basic Principles of the Spore-germinating Method. Nyt nordisk forlag A. Busck, 1944.